Description
There exists a use-after-free vulnerability in the Linux kernel through io_uring and the IORING_OP_SPLICE operation. If IORING_OP_SPLICE is missing the IO_WQ_WORK_FILES flag, which signals that the operation won't use current->nsproxy, so its reference counter is not increased. This assumption is not always true as calling io_splice on specific files will call the get_uts function which will use current->nsproxy leading to invalidly decreasing its reference counter later causing the use-after-free vulnerability. We recommend upgrading to version 5.10.160 or above
Affected products
netapp: h410s firmware; netapp: h410s; netapp: h410c firmware; netapp: h410c; netapp: h700s firmware; netapp: h700s; netapp: h500s firmware; netapp: h500s; netapp: h300s firmware; netapp: h300s; linux: linux kernel
References5
- git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit… Mailing ListPatchVendor Advisory
- git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit… Mailing ListPatchVendor Advisory
- security.netapp.com/advisory/ntap-20230223-0003/ Vendor Advisory
- kernel.dance/#75454b4bbfc7e6a4dd8338556f36ea9107ddf61a ExploitThird Party Advisory
- kernel.dance/#75454b4bbfc7e6a4dd8338556f36ea9107ddf61a ExploitThird Party Advisory
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 38 · as of 6 November 2026
- CWE
- CWE-763CWE-416
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